Zero. Clement could get a set off Federer if he's playing really well like he did in Marseille but he can't win. Blake will win in straight sets...maybe even get a bagel. If I were a betting man, then I would go all in a 2 match parlay.

Yeah, Arnould has next to no chance, but who knows, Fed is known to be lazy and disinterested in early rounds. However, keeping in mind Nadals loss, Fed should be feeling really good about his chances right now, so he might have more interest in actually winning the whole thing.